1123133130 has 192 divisors, whose sum is σ = 3551558400. Its totient is φ = 240537600.

The previous prime is 1123133117. The next prime is 1123133177. The reversal of 1123133130 is 313313211.

It is a happy number.

It is a super-2 number, since 2×1123133130² = 2522856055407193800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1208506 + ... + 1209434.

It is an arithmetic number, because the mean of its divisors is an integer number (18497700).

Almost surely, 2^1123133130 is an apocalyptic number.

1123133130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123133130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1775779200).

1123133130 is an abundant number, since it is smaller than the sum of its proper divisors (2428425270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123133130 is a wasteful number, since it uses less digits than its factorization.

1123133130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1123133130 is about 33513.1784526625. The cubic root of 1123133130 is about 1039.4662972928.

Adding to 1123133130 its reverse (313313211), we get a palindrome (1436446341).

The spelling of 1123133130 in words is "one billion, one hundred twenty-three million, one hundred thirty-three thousand, one hundred thirty".